A Block Is on a Frictionless Table, on Earth $s ^ { 2 }$

Multiple Choice

A block is on a frictionless table, on earth. The block accelerates at 3.0 m/ $s ^ { 2 }$ when a $20 \mathrm {~N}$ horizontal force is applied to it. The block and table are set up on the Moon where the acceleration due to gravity is 1.62 m/ $s ^ { 2 }$ . The weight of the block on the Moon is closest to

A) 11 N.
B) 9.5 N.
C) 8.1 N.
D) 6.8 N.
E) 5.5 N.